CVE-2026-40164
Estado: AplazadaAlta (7.5)—
jq is a command-line JSON processor. Before commit 0c7d133c3c7e37c00b6d46b658a02244fdd3c784, jq used MurmurHash3 with a hardcoded, publicly visible seed (0x432A9843) for all JSON object hash table operations, which allowed an attacker to precompute key collisions offline. By supplying a crafted JSON object (~100 KB) where all keys hashed to the same bucket, hash table lookups degraded from O(1) to O(n), turning any jq expression into an O(n²) operation and causing significant CPU exhaustion.
Leer descripción completaMostrar menos
This affected common jq use cases such as CI/CD pipelines, web services, and data processing scripts, and was far more practical to exploit than existing heap overflow issues since it required only a small payload. This issue has been patched in commit 0c7d133c3c7e37c00b6d46b658a02244fdd3c784.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 7.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.59%
- Percentil entre todas las CVEs puntuadas: 47
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1190Exploit Public-Facing Applicationinitial access85 % - Impacto principal
T1499.004Application or System Exploitationimpact90 %
AV:N/PR:N permite exploit remoto sin autenticación (T1190). Ataque de colisión hash degrada O(1) a O(n²) causando agotamiento de CPU (T1499.004 DoS)
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (1)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-328, CWE-407
- CWE-341
Referencias
- https://github.com/jqlang/jq/commit/0c7d133c3c7e37c00b6d46b658a02244fdd3c784
- https://github.com/jqlang/jq/security/advisories/GHSA-wwj8-gxm6-jc29
- https://access.redhat.com/errata/RHSA-2026:16252
- https://access.redhat.com/errata/RHSA-2026:16692
- https://access.redhat.com/errata/RHSA-2026:16693
- https://access.redhat.com/errata/RHSA-2026:18040
- https://access.redhat.com/errata/RHSA-2026:18042
- https://access.redhat.com/errata/RHSA-2026:18043
- https://access.redhat.com/errata/RHSA-2026:18044
- https://access.redhat.com/errata/RHSA-2026:18045
- https://access.redhat.com/errata/RHSA-2026:18046
- https://access.redhat.com/errata/RHSA-2026:18047
- https://access.redhat.com/errata/RHSA-2026:18048
- https://access.redhat.com/errata/RHSA-2026:19151
- https://access.redhat.com/errata/RHSA-2026:19365
- https://access.redhat.com/errata/RHSA-2026:23233
- https://access.redhat.com/errata/RHSA-2026:23245
- https://access.redhat.com/errata/RHSA-2026:25044
- https://access.redhat.com/errata/RHSA-2026:25096
- https://access.redhat.com/errata/RHSA-2026:25181
- https://access.redhat.com/errata/RHSA-2026:26528
- https://access.redhat.com/errata/RHSA-2026:26542
- https://access.redhat.com/errata/RHSA-2026:28887
- https://access.redhat.com/errata/RHSA-2026:30078
- https://access.redhat.com/errata/RHSA-2026:30087
- https://access.redhat.com/errata/RHSA-2026:30088
- https://access.redhat.com/errata/RHSA-2026:30089
- https://access.redhat.com/errata/RHSA-2026:34098
- https://access.redhat.com/errata/RHSA-2026:8579
- https://access.redhat.com/security/cve/CVE-2026-40164
- https://bugzilla.redhat.com/show_bug.cgi?id=2458084
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40164.json
JSON original (NVD)
Mostrar
{
"id": "CVE-2026-40164",
"cveTags": [],
"metrics": {
"ssvcV203": [
{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-40164",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "poc"
},
{
"automatable": "yes"
},
{
"technicalImpact": "partial"
}
],
"version": "2.0.3",
"timestamp": "2026-04-14T19:08:48.249009Z"
}
}
],
"cvssMetricV31": [
{
"type": "Secondary",
"source": "security-advisories@github.com",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.5,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 3.9
},
{
"type": "Secondary",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"cvssData": {
"scope": "UNCHANGED",
"version": "3.1",
"baseScore": 7.5,
"attackVector": "NETWORK",
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"integrityImpact": "NONE",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 3.6,
"exploitabilityScore": 3.9
}
]
},
"affected": [
{
"source": "security-advisories@github.com",
"affectedData": [
{
"vendor": "jqlang",
"product": "jq",
"versions": [
{
"status": "affected",
"version": "< 0c7d133c3c7e37c00b6d46b658a02244fdd3c784"
}
]
}
]
},
{
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"affectedData": [
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:10.1",
"cpe:/o:redhat:enterprise_linux:10.2"
],
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 10",
"versions": [
{
"status": "unaffected",
"version": "0:1.7.1-11.el10_1.0.2",
"lessThan": "*",
"versionType": "rpm"
},
{
"status": "unaffected",
"version": "0:1.7.1-11.el10_2.2",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "jq",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux_eus:10.0"
],
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 10.0 Extended Update Support",
"versions": [
{
"status": "unaffected",
"version": "0:1.7.1-8.el10_0.3",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "jq",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:enterprise_linux:8"
],
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8",
"versions": [
{
"status": "unaffected",
"version": "0:1.6-12.el8_10",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "jq",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:rhel_aus:8.4"
],
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support",
"versions": [
{
"status": "unaffected",
"version": "0:1.5-12.el8_4.5",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "jq",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:rhel_eus_long_life:8.4"
],
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On",
"versions": [
{
"status": "unaffected",
"version": "0:1.5-12.el8_4.5",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "jq",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:rhel_aus:8.6"
],
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support",
"versions": [
{
"status": "unaffected",
"version": "0:1.6-3.el8_6.2",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "jq",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:rhel_tus:8.6"
],
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8.6 Telecommunications Update Service",
"versions": [
{
"status": "unaffected",
"version": "0:1.6-3.el8_6.2",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "jq",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:rhel_e4s:8.6"
],
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions",
"versions": [
{
"status": "unaffected",
"version": "0:1.6-3.el8_6.2",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "jq",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:rhel_tus:8.8"
],
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8.8 Telecommunications Update Service",
"versions": [
{
"status": "unaffected",
"version": "0:1.6-6.el8_8.4",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "jq",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:rhel_e4s:8.8"
],
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions",
"versions": [
{
"status": "unaffected",
"version": "0:1.6-6.el8_8.4",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "jq",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/o:redhat:enterprise_linux:9"
],
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9",
"versions": [
{
"status": "unaffected",
"version": "0:1.6-19.el9_7.0.2",
"lessThan": "*",
"versionType": "rpm"
},
{
"status": "unaffected",
"version": "0:1.6-19.el9_8.2",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "jq",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.0"
],
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions",
"versions": [
{
"status": "unaffected",
"version": "0:1.6-12.el9_0.3",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "jq",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:rhel_e4s:9.2"
],
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions",
"versions": [
{
"status": "unaffected",
"version": "0:1.6-15.el9_2.3",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "jq",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/o:redhat:rhel_eus:9.4"
],
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9.4 Extended Update Support",
"versions": [
{
"status": "unaffected",
"version": "0:1.6-16.el9_4.2",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "jq",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/o:redhat:rhel_eus:9.6"
],
"vendor": "Red Hat",
"product": "Red Hat Enterprise Linux 9.6 Extended Update Support",
"versions": [
{
"status": "unaffected",
"version": "0:1.6-17.el9_6.4",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "jq",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:openshift:4.12::el8"
],
"vendor": "Red Hat",
"product": "Red Hat OpenShift Container Platform 4.12",
"versions": [
{
"status": "unaffected",
"version": "412.86.202606140301-0",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "rhcos",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:openshift:4.13::el9"
],
"vendor": "Red Hat",
"product": "Red Hat OpenShift Container Platform 4.13",
"versions": [
{
"status": "unaffected",
"version": "413.92.202606160406-0",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "rhcos",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:openshift:4.14::el9"
],
"vendor": "Red Hat",
"product": "Red Hat OpenShift Container Platform 4.14",
"versions": [
{
"status": "unaffected",
"version": "414.92.202606231112-0",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "rhcos",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:openshift:4.15::el9"
],
"vendor": "Red Hat",
"product": "Red Hat OpenShift Container Platform 4.15",
"versions": [
{
"status": "unaffected",
"version": "415.92.202606030318-0",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "rhcos",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:openshift:4.16::el9"
],
"vendor": "Red Hat",
"product": "Red Hat OpenShift Container Platform 4.16",
"versions": [
{
"status": "unaffected",
"version": "416.94.202606051757-0",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "rhcos",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:openshift:4.17::el9"
],
"vendor": "Red Hat",
"product": "Red Hat OpenShift Container Platform 4.17",
"versions": [
{
"status": "unaffected",
"version": "417.94.202606250942-0",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "rhcos",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:openshift:4.18::el9"
],
"vendor": "Red Hat",
"product": "Red Hat OpenShift Container Platform 4.18",
"versions": [
{
"status": "unaffected",
"version": "418.94.202606051320-0",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "rhcos",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:openshift:4.19::el9"
],
"vendor": "Red Hat",
"product": "Red Hat OpenShift Container Platform 4.19",
"versions": [
{
"status": "unaffected",
"version": "4.19.9.6.202606031700-0",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "rhcos",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:ai_inference_server:3.2::el9"
],
"vendor": "Red Hat",
"product": "Red Hat AI Inference Server 3.2",
"versions": [
{
"status": "unaffected",
"version": "1780681984",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "rhaiis/model-opt-cuda-rhel9",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:ai_inference_server:3.3::el9"
],
"vendor": "Red Hat",
"product": "Red Hat AI Inference Server 3.3",
"versions": [
{
"status": "unaffected",
"version": "1782352950",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "rhaiis/model-opt-cuda-rhel9",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:ai_inference_server:3.3::el9"
],
"vendor": "Red Hat",
"product": "Red Hat AI Inference Server 3.3",
"versions": [
{
"status": "unaffected",
"version": "1782352919",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "rhaiis/vllm-spyre-rhel9",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:ai_inference_server:3.3::el9"
],
"vendor": "Red Hat",
"product": "Red Hat AI Inference Server 3.3",
"versions": [
{
"status": "unaffected",
"version": "1782353093",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "rhaiis/vllm-rocm-rhel9",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:ai_inference_server:3.3::el9"
],
"vendor": "Red Hat",
"product": "Red Hat AI Inference Server 3.3",
"versions": [
{
"status": "unaffected",
"version": "1782352847",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "rhaiis/vllm-cuda-rhel9",
"collectionURL": "https://catalog.redhat.com/software/containers/",
"defaultStatus": "affected"
},
{
"cpes": [
"cpe:/a:redhat:hummingbird:1"
],
"vendor": "Red Hat",
"product": "Red Hat Hardened Images",
"versions": [
{
"status": "unaffected",
"version": "1.8.1-3.hum1",
"lessThan": "*",
"versionType": "rpm"
}
],
"packageName": "jq-main",
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"defaultStatus": "affected"
}
]
}
],
"published": "2026-04-14T00:16:07.360",
"references": [
{
"url": "https://github.com/jqlang/jq/commit/0c7d133c3c7e37c00b6d46b658a02244fdd3c784",
"source": "security-advisories@github.com"
},
{
"url": "https://github.com/jqlang/jq/security/advisories/GHSA-wwj8-gxm6-jc29",
"source": "security-advisories@github.com"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:16252",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:16692",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:16693",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:18040",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:18042",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:18043",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:18044",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:18045",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:18046",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:18047",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:18048",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:19151",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:19365",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:23233",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:23245",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:25044",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:25096",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:25181",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:26528",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:26542",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:28887",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:30078",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:30087",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:30088",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:30089",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:34098",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://access.redhat.com/errata/RHSA-2026:8579",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://access.redhat.com/security/cve/CVE-2026-40164",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2458084",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
},
{
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-40164.json",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c"
}
],
"vulnStatus": "Deferred",
"weaknesses": [
{
"type": "Secondary",
"source": "security-advisories@github.com",
"description": [
{
"lang": "en",
"value": "CWE-328"
},
{
"lang": "en",
"value": "CWE-407"
}
]
},
{
"type": "Secondary",
"source": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"description": [
{
"lang": "en",
"value": "CWE-341"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "jq is a command-line JSON processor. Before commit 0c7d133c3c7e37c00b6d46b658a02244fdd3c784, jq used MurmurHash3 with a hardcoded, publicly visible seed (0x432A9843) for all JSON object hash table operations, which allowed an attacker to precompute key collisions offline. By supplying a crafted JSON object (~100 KB) where all keys hashed to the same bucket, hash table lookups degraded from O(1) to O(n), turning any jq expression into an O(n²) operation and causing significant CPU exhaustion. This affected common jq use cases such as CI/CD pipelines, web services, and data processing scripts, and was far more practical to exploit than existing heap overflow issues since it required only a small payload. This issue has been patched in commit 0c7d133c3c7e37c00b6d46b658a02244fdd3c784."
}
],
"lastModified": "2026-07-15T02:21:02.860",
"sourceIdentifier": "security-advisories@github.com"
}